Product Description
Bently Nevada 176449‑02, module designation 3500/42M‑01‑00, 4‑Channel Proximitor / Seismic Monitor, core hardware of 3500 series machinery protection system. OEM production is obsolete under Baker‑Hughes legacy portfolio. This module accepts inputs from proximity probes, velocity transducers and accelerometers. Each channel is independently configurable for radial vibration, thrust position, differential expansion and acceleration measurement. It provides sensor fault diagnostics and alarm threshold comparison. Hot‑swap supported for 3500 rack installation. Available supplies include new surplus stock and fully‑tested refurbished units.
Technical Specification
| Item | Specification |
|---|---|
| Full Model | 3500/42M‑01‑00, P/N 176449‑02 |
| Product Type | 4‑Channel Proximitor / Seismic Monitor Module |
| Channel Count | 4 independent programmable channels |
| Supported Transducers | Proximity probes, velocity transducers, accelerometers |
| Transducer Power Supply | ‑23.5 VDC, max 8 mA per channel |
| Output | Buffered transducer output (BNC per channel); 4‑20 mA recorder output |
| Communication | Rack internal bus, channel configuration via 3500 software |
| Power Consumption | Typical 7.7 W |
| Operating Temperature | ‑30℃ ~ +65℃ |
| Storage Temperature | ‑40℃ ~ +85℃ |
| Ambient Humidity | 5%‑95% RH, non‑condensing |
| Mounting | Plug‑in for 3500 rack, hot‑swap capable |
| Front‑panel Indicator | LED for Power, OK, Fault, Alarm status |
| Certification | CE, API‑670, Industrial EMC compliance |
| Weight | Approx. 1.0 kg |
| Country of Origin | USA |
Product Application
- Machinery protection and condition monitoring for steam turbines, hydro‑ and gas‑fired generators in power plants.
- Vibration and shaft‑position monitoring for compressors, turbines and fans in petro‑chemical industry.
- Measurement of radial vibration, thrust position, differential expansion, acceleration and eccentricity.
- Sensor break / short‑circuit detection, over‑limit alarm output for machine protection interlock logic.
- Retrofit of legacy 3500 installations, defective module replacement and on‑site spare‑parts inventory.
Related Series Models
‑ 176449‑01: Early hardware revision of 3500/42M, older firmware, partial configuration incompatibility
‑ 176449‑03: Updated hardware variant of 3500/42M
‑ 125720‑01: 3500/40M Dual‑channel displacement monitor
‑ 140734‑01: 3500/45 Position monitor module
‑ 133812‑02: 3500/53 Overspeed protection module
‑ 128276‑01: 3500/22M Rack interface module
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